60661481 has 2 divisors, whose sum is σ = 60661482. Its totient is φ = 60661480.

The previous prime is 60661441. The next prime is 60661487. The reversal of 60661481 is 18416606.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42042256 + 18619225 = 6484^2 + 4315^2 .

It is a cyclic number.

It is not a de Polignac number, because 60661481 - 2¹⁸ = 60399337 is a prime.

It is a super-2 number, since 2×60661481² = 7359630554226722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (60661487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30330740 + 30330741.

It is an arithmetic number, because the mean of its divisors is an integer number (30330741).

Almost surely, 2^60661481 is an apocalyptic number.

It is an amenable number.

60661481 is a deficient number, since it is larger than the sum of its proper divisors (1).

60661481 is an equidigital number, since it uses as much as digits as its factorization.

60661481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 60661481 is about 7788.5480675155. The cubic root of 60661481 is about 392.9201818274.

The spelling of 60661481 in words is "sixty million, six hundred sixty-one thousand, four hundred eighty-one".